Book Image

Redis Stack for Application Modernization

By : Luigi Fugaro, Mirko Ortensi
1 (1)
Book Image

Redis Stack for Application Modernization

1 (1)
By: Luigi Fugaro, Mirko Ortensi

Overview of this book

In modern applications, efficiency in both operational and analytical aspects is paramount, demanding predictable performance across varied workloads. This book introduces you to Redis Stack, an extension of Redis and guides you through its broad data modeling capabilities. With practical examples of real-time queries and searches, you’ll explore Redis Stack’s new approach to providing a rich data modeling experience all within the same database server. You’ll learn how to model and search your data in the JSON and hash data types and work with features such as vector similarity search, which adds semantic search capabilities to your applications to search for similar texts, images, or audio files. The book also shows you how to use the probabilistic Bloom filters to efficiently resolve recurrent big data problems. As you uncover the strengths of Redis Stack as a data platform, you’ll explore use cases for managing database events and leveraging introduce stream processing features. Finally, you’ll see how Redis Stack seamlessly integrates into microservices architectures, completing the picture. By the end of this book, you’ll be equipped with best practices for administering and managing the server, ensuring scalability, high availability, data integrity, stored functions, and more.
Table of Contents (18 chapters)
1
Part 1: Introduction to Redis Stack
6
Part 2: Data Modeling
11
Part 3: From Development to Production

Working with JSON

The JSON format does not need too much of an introduction. As a JavaScript native object, born for lightweight communication between web clients and servers, and adopted in general for electronic communications, it is supported by most client libraries and databases. Redis Stack does not make exceptions and extends the data modeling capabilities to JSON objects, together with the indexing features we’ve learned so far. Using the JSON data structure in Redis Stack, you can store, retrieve, and update JSON documents efficiently using the popular JSONPath syntax. The many commands to manipulate strings, counters, arrays, and object literals, and all the data stored in a JSON document, help address the requirements of several data modeling problems.

The JSONPath syntax

The JSONPath syntax helps with accessing a single element or multiple elements within a JSON document.

Using the JSON.* suite of commands together with JSONPath, you can work with the JSON...